Here's my entry for Derpibooru's 11th Anniversary Art Event.

The prompt for the event is to show a pony (or other FiM race) meeting, having fun, working with, and/or learning about other kinds of ponies (race or culture) or creatures.

So, following the prompt, I decided to have me as my OC persona, Film Reel, visiting Seaquestria to meet the Seaponies, wearing a party hat and bringing a cake and two number 1 balloons to make an 11, and celebrated the show's anniversary with Princess Skystar, who's the most surprised and happy to see cake for the first time.

(And yes, Film Reel's holding his breath as, with having lived with Fluttershy for a long time and spending some time learning from her, he can hold his breath for minutes on end without needing an air bubble or a pearl to turn into a seapony.)

Originally drawn in pencil. Colors, filters, balloons, cake, party hat, bubbles and edits done in Photoshop.